Cutting blade



FIG. 1 is a perspective view of a cutting blade, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side appearing the same;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of the handle in FIGS. 2, 3, 5 and 6 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a cutting blade, as shown. 